Which of these is represented by the number 8 on the map of the United States and Canada?

A) The Ohio River
B) The Hudson River
C) The Allegheny River
D) The St. Lawrence River

the perimeter of a triangle is 69 cm. side a is 5 cm shorter than side b. side c is twice as long as side a. find the length of each side. i need to know how to do it in 2 equations.  

equations:

a = b-5

c = 2a

a + b + c = 69

c. archbishop desmond tutu promoted the acknowledgement of the rights of black africans and expose human rights abuses.

d. leader haile selassie modernized african society through the institution of progressive social, economic, and educational reforms.

c. is the western hemisphere.